Tommy was asked to count a collection of hockey cards. As he skip counted to find the total of 110, he wrote the numbers down. All of the numbers that Tommy wrote ended in 0. What could Tommy have counted by?
Tommy was asked to count a collection of hockey cards. As he skip counted to find the total of 110, he wrote the numbers down. All of the numbers that Tommy wrote ended in 0. What could Tommy have counted by?
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